Knowing people who have grown Epipremnum for what seems like decades in water, I think it has more to do with changing the water once in a while, adding a little fertility, cleaning the container, etc. In other words, things that would be done routinely in a well-maintained aquarium.

Potatoes, good luck and be sure to post a photo of your tank with pothos growing out of it. I may want to do the same with mine.

Great, those are excellent points, I have definitely seen it in jars where they get minimal light from the over head lights and looked like the water was never changes. I agree that it is probably plants in that type of set up that dies, and since mine will be near a window to receive partial light, as well as get regular over head light, I am betting they will do great, especially with the nutrients from my aquarium water. I cut the plants below a node and i have had them in a sunny spot with the stems ( I stripped off the bottom leaves) in a bowl. I put them in on the day of the post, and the area where i cut it turned brown, but i am hoping roots will come soon. As soon as it is established i will post pictures so you can see it better
Mike

I have Golden Pothos (Epipremnum)thriving in several aquariums, roots in the water, stems and leaves out of the water. They grow like crazy, in moderate or better light.
I have heartleaf philodendron (P. cordatum) growing in lava rock as a sort of above the tank sump (water is pumped up from the tank, and is returned to the tank via gravity) It is growing well, though more controlled than the Pothos.
The fish and snails do not bother these plants. There are rarely any leaves under the water.
Some of the Pothos leaves are almost 1' long, giant heart shaped things! I have seen them growing outside where they limb trees and the leaves split like split leaf philodendron (Monstera sp,)

Thanks so much for your reply, I am now much more confidant in using them. I plan to remove the plastic attachment on my glass hood (it is at the back, and its about 3" by 18") and i will have all the roots in there, while the plant and leaves will grow on the top of the tank and cascade down the sides and back. I found a heat lamp that can handle 150 watt bulbs, so i will suspend that over the tank once it gets going so it will have enough light, but hopefully it will be dense enough do i do nto add too much excess light to the tank. The stem cuttings are currently sitting in water and i am waiting for roots, but i will post pictures once it gets going.

Use a compact fluorescent bulb in the fixture for a better range of color that the plant will like better. a heat lamp is the wrong wave lengths.
Just like aquatic plants, land plants also use some red wave lengths, and some blue. Something like a 'Daylight' bulb, though if you an find a 'plant' bulb that fits your fixture that would be even better.